Non-SIM IMS Authentication via IP Identity Extraction
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Solution Overview
Problem
The conventional authentication process for non-SIM based communication devices accessing the IMS network is complex and inefficient, requiring the use of shared secret keys and mapping of HTTP usernames and passwords to IMPI and IMPU, leading to undesirable latency.
Innovation Solution
A method and system for authenticating communication devices using an internet protocol identity not associated with a subscriber identity module, where the device sends an internet protocol identity to the IMS network, and authentication information is requested and verified, allowing access to the IMS network without the need for IMPI and IMPU stored in SIM cards, simplifying the authentication process by eliminating the requirement for secret key authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional authentication process using IMPI and IMPU with SIM cards is used, then security and identity verification are ensured, but authentication complexity and latency increase
Solution Approach 1:
The patent extracts the authentication credentials (internet protocol identity and authentication information) from the SIM card storage location and implements them in non-SIM-based storage locations within the communication device, thereby eliminating the complexity of SIM card-based authentication while maintaining security
Solution Approach 2:
The patent enables multiple authentication methods (SIM-based and non-SIM-based) to coexist within the same communication device, allowing the device to function with universal authentication capabilities across different scenarios without requiring separate devices
2Reliability
If conventional authentication process with secret key mapping is used, then identity verification is achieved, but authentication latency increases
Solution Approach 1:
The patent performs preliminary actions by pre-configuring the internet protocol identity and authentication information in the communication device before authentication is needed, eliminating the time-consuming process of real-time secret key generation and mapping during authentication
Solution Approach 2:
The patent uses copied authentication credentials (internet protocol identity and authentication information) stored locally in the communication device instead of performing real-time derivation from secret keys, significantly reducing authentication latency while maintaining verification reliability
3Device complexity
If non-SIM based authentication is implemented, then authentication complexity and latency are reduced, but compatibility with conventional IMS network may be affected
Solution Approach 1:
The communication device is configured to support both SIM-based and non-SIM-based authentication methods, enabling it to adapt to different network environments and maintain compatibility with conventional IMS networks while also supporting simplified non-SIM-based authentication where available
Solution Approach 2:
The internet protocol identity acts as an intermediary credential that bridges non-SIM-based storage locations with the IMS network authentication requirements, enabling compatibility between conventional network infrastructure and modern non-SIM-based authentication approaches
Data Source
AI summary
A communication device including a non-SIM based client is authenticated for accessing an IMS network. An internet protocol identity is received from the communication device. The internet protocol identity is not associated with a SIM. Authentication information associated with the internet protocol identity is requested and received from the communication device. A determination is made whether the communication device is authenticated based on the internet protocol identity and the authentication information. If the communication device is determined to be authenticated, the communication device is allowed access to the IMS network.